Question

A scientist in Smallville tested the cholesterol of a random sample of 35 town residents. He constructed the following confidence interval:

t-interval for μ: with 99.00% Confidence: 188 < μ(Cholesterol) < 206

What is the margin of error?

A) 18
B) 9
C) 1.09
D) 197
E) Unable to answer with the given information

Nov 7, 2013

2E + 188 = 206

2E = 206-188

2E = 18

E = 9

Answer B

Nov 7, 2013

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